raid 1+0 or raid 10 (adm)

Question

RAID

When creating a raid, it is possible to select raid 1 + 0 or raid 10 (adm)
adm, as I understand advanced data mirroring, but I did not find detailed information
which raid is better to create?

Answer 1

RAID 0+1
RAID 0+1 can basically mean two options:
two RAID 0s are combined into RAID 1;
three or more disks are combined into an array, and each data block is written to two disks of this array; thus, with this approach, as in "pure" RAID 1, the useful volume of the array is half of the total volume of all disks (if these are disks of the same capacity).
RAID 10 (1+0)
RAID 10 Architecture Diagram
RAID 10 is a mirrored array in which data is written sequentially to multiple disks, as in RAID 0. This architecture is a RAID 0 type array, the segments of which are RAID 1 arrays instead of individual disks. Accordingly, an array of this level must contain at least 4 disks (and always an even number). RAID 10 combines high fault tolerance and performance.
The claim that RAID 10 is the most reliable option for data storage is justified by the fact that the array will be taken out of service after the failure of all drives in the same array. With one drive failing, the chance of failure of the second one in the same array is 1/3*100=33%. RAID 0+1 will fail if two drives fail in different arrays. The chance of failure of a drive in a neighboring array is 2/3*100=66%, however, since a drive in an array with a drive that has already failed is no longer used, the chance that the next drive will disable the entire array is 2/2 *100=100%.

...that's what Wikipedia says.
In simple terms, in the first case, two disks are "mirrored" among themselves, in the second - two arrays.
Here you need to proceed from your needs (or some rules / requirements / instructions of the organization) in protecting against data loss and, accordingly, on the importance of this data.
For some base 1C, 0 + 1 will be enough.